G6 C9 Quiz Review

G6 C9 Quiz Review

Perimeter and Area

Open Ended

What is perimeter?

Perimeter

the distance around a shape

Open Ended

How do you find the perimeter of a figure?

Perimeter

• to find the perimeter, you add all the sides

• sometimes you need to figure out the lengths of missing sides

Open Ended

Find the perimeter.

Fill in the Blanks

Fill in the Blanks

Open Ended

What is circumference?

Circumference

the distance around a circle

Multiple Select

What is the formula for calculating the circumference? Check all that apply.

• $C=\pi r^{2\ }$

• $C=2\pi r$

• $C=bh$

• $C=\pi d$

Multiple Choice

A minute hand (radius) of a clock is 13.8 meters long. What is the circumference of the clock?

• 86.7 meters

• 76.6 meters

• 66.6 meters

• 96.7 meters

Multiple Choice

Find the circumference with a diameter of 18.4 km. Use 3.14 for pi.

• 23.7 km

• 57.8 km

• 19.3 km

• 59.1 km

Open Ended

What is area?

Area

Area is the number of square units it takes to cover a figure.

We can calculate area by counting the number of squares or by using formulas.

4 Steps for Area Problems

• 1. write the formula

• 2. fill in the known values

• 3. solve for the unknown value

• 4. include a label (units²)

Multiple Choice

What is the formula for the area of a rectangle or a parallelogram?

• $A=b\times h$

• $A=\frac{\left(b\times h\right)}{2}$

• $A=\pi r^2$

Open Ended

Write each step. Find the area.

Multiple Choice

Find the area.

• 17 cm²
• 40 cm²
• 26 cm²
• 60 cm²

Multiple Choice

What is the formula for the area of a triangle?

• $A=b\times h$

• $A=\frac{\left(b\times h\right)}{2}$

• $A=\pi r^2$

Multiple Choice

Find the area of the triangle.

• 96 in²

• 48 in²

• 20 in²

Multiple Choice

What is the area of the triangle?

• $70\ m^2$

• $140\ m^2$

• $60\ m^2$

• 70 m

Multiple Choice

What is the formula for the area of a circle?

• $A=b\times h$

• $A=\frac{\left(b\times h\right)}{2}$

• $A=\pi r^2$

Open Ended

A circle has a diameter of 6 cm. Find the area of the circle in terms of pi.

Multiple Choice

Find the area of the circle.

• 18.84 m²

• 113.04 m²

• 37.68 m²

• 452.16 m²

Multiple Choice

Find the area of the circle.

• 176.6 cm²

• 706.5 cm²

• 23.6 cm²

• 50.24 cm²

Multiple Choice

Which of the coordinates given could be the fourth point used to form a rectangle?

• (3, -6)
• (-3, -6)
• (-6, 3)
• (4, -6)

Multiple Choice

What is the measurement of the base?

• b = 40 in

• b = 35 in

• b = 20 in

• b = 4 in

Multiple Choice

First find the missing sides. Then find the perimeter. What is the perimeter?

• 26 inches

• 38 inches

• 36 inches

• 25 inches

Multiple Choice

A triangle has an area of 117 cm². If the base is 26 cm, what is the height?

• 36 cm
• 18 cm
• 9 cm
• 4.5 cm